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针对库区岗地浸没问题,采用解析法和平面准三维地下水数值模型求解具有一定的局限性,以燕山水库为例,选取魏岗铺和高庄两个典型河间地块,采用三维地下水渗流数值模型分析了典型河间地块的浸没影响,并根据典型地块分析结果,建立了浸没影响长度与地表坡降之间的关系统计模型,据此类比评价了不同情况下整个库区的浸没影响。结果表明,岗地浸没影响主要集中于河流两岸的地势平缓地区,地表坡降是影响岗地浸没的主要因素之一,且类比法预测结果与工程实际浸没情况相符。
In view of the problem of submerged mine site, the analytic method and the plane quasi-3D groundwater numerical model have some limitations. Taking Yanshan reservoir as an example, two typical inter-Heterogene plots of Weigangpu and Gaozhuang are selected. Three-dimensional groundwater infiltration numerical The model analyzes the submerged effect of the typical inter-river massif. Based on the analysis results of the typical massifs, a statistical model of the relationship between the length of the submerged impact and the slope of the land surface is established. Based on this analogy, the submergence of the entire reservoir area under different conditions . The results show that the impact of hillock immersion is mainly concentrated in the flat terrain on both banks of the river. The surface slope fall is one of the main factors affecting the hillock immersion. The prediction results of the analogy method are consistent with the actual immersion of the dam.